IDMT Earth Fault Relay (DP-31)

IDMT Earth Fault Relay (DP-31)

Features:

True RMS Measurement with SPARC1 and DCOI2 Algorithm

Fundamental Signal Detection3

Real Time Display of Earth Fault in %

6 Selectable IDMT Graphs + 1DTL

Fault / io-set & hi-set Trip LED Indication

Fault Start Event Recording & LED Indication + Output4

Pre-Alarm LED Indication + Output4

Trip Event Memory (non-volatile 7 previous records

Fault Start Event Memory (non-volatile 4 previous records)

Programmable Relay Output Contacts

Last Trip Elapsed Time (up to 99days)

Software Lock to Prevent Unauthorized Setting

Complies with IEC-60255-26 Standards

ANSI Code: 50N 51N

External Plug-in Module for:  A-01s (RS-485 MODBUS RTU) isolated type

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